It’s ok, the world won’t end.
You might get systems that are reliable and cost a great deal less if you exit AWS.
Lose your fear, have courage, find a better cheaper faster more reliable alternative…. well pretty much anywhere.
They have convinced you this is your only choice. It is not.
There are some rare exceptions who have their own large scale infrastructure and don't depend on AWS like Hetzner in EU, Alibaba Cloud in China or Ananta Cloud in India, but this market is still emerging.
You are making the claim you see a clear massive global untapped market, for lower price and higher quality cloud/global compute, that you know how to provision and serve.
Apparently Signal will be happy to hear from you.
Well then. I believe you.